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Analysis of residual stress state in speed gears for automotive vehicles

Tatiana Gurova, Joel R. Teodosio, Vladimir Monine
2001 Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering  
Residual stress profiles in speed gears for automotive vehicles were determined. The profiles were: measured at the root between two teeth of the gears by x-ray diffraction. The gears were cemented, quenched and annealed. After these heat treatments, compressive residual stresses were: introduced by shot-peening. The profiles of stress distribution indicate the maximum of comlpressive residual stress (-950 MPa) at a depth of 0.05 mm. The stresses decrease to zero at a depth of 0.25 mm. In the
more » ... f 0.25 mm. In the gears without shot-peening the maximum of compressive residual stress (-600 MPa) is on the surface and decrease to zero at a depth of 0.30 mm.
doi:10.1117/12.417667 fatcat:3qc3bnc7ufhwlo5i77hpnsj2ym